摘要
查明井田瓦斯富集的地质主控因素,是制定瓦斯治理措施、保障煤矿安全生产的基础。根据霍州矿区李雅庄井田的实际勘探资料,应用地质分析法,对该矿的高瓦斯成因进行了研究,发现地质演化后期的次生生物作用是该矿成为高瓦斯的主要原因;应用线性回归等数学建模,分别从井田断层落差、煤层埋深、上覆基岩厚度、底板标高和顶底板泥岩厚度等方面对该矿的高瓦斯富集地质主控因素进行研究,揭示煤层埋深是该井田瓦斯富集的地质主控因素。
Making clear the geologic master factor for control of gas enrichment in the mine field is the foundation for safe production and for taking measures to control the gas. Based on the data obtained in actual prospecting of Liyazhuang mine field in Huozhou mining area, the authors have studied the origin of high gassiness by using geologic analysis method. They have found the secondary biologic effect in the later stage of geologic evolution is the main reason for the high gassiness. A linear regression mathematic model is established to study the master factor that controls high concentration of gas in the mine from many aspects, such as, throw of faults in the mine field, burial depth of coal seams, thickness of overlying base rocks, elevation of floor and thickness of madstone floor rock, etc. It indicates the burial depth of coal seams is the master geologic factor the controls the gas enrichment in the mine field.
出处
《中国煤层气》
2010年第4期23-26,22,共5页
China Coalbed Methane
关键词
瓦斯地质
富集
煤层埋深
次生生物气
Gas geology
enrichment
burial depth of coal seams
secondary biogas
